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Illusion - Is Seeing Really Believing?
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Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
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00248_Text_ref10t.txt
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1997-02-04
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Recognition and Identification
Changes in the constituent
parts of the letter E do not
much affect our perception of
similarity if the
organizational relations are
preserved.
Earlier, I spoke of the
recognition of the map of
Europe and said it was based
upon the proper perception of
the pattern in the illustration.
One can distinguish between a
process that leads only to a
perception of shape (or of
depth, or of size, or of any
object property) and a process
that leads beyond perception of
shape to its recognition and
identification. Once we
organize the pattern properly
and perceive the white region
as figure (and rotate it
mentally to its upright
position), we can recognize
this shape as familiar and
identify it as representing the
continent of Europe.
Ordinarily then, for familiar
objects at least, recognition
occurs after shape has been
perceived. To be sure, in our
subjective experience,
recognition seems to be
simultaneous with our
perception of shape. But
logically we must presume that
the process underlying the
perception of shape precedes
by some finite interval of time,
however brief, the process
underlying recognition. Of
course for unfamiliar, novel
shapes, the perception of
shape will not lead to any such
recognition. Recognition and
identification necessarily
imply some contribution from
past experience to the present
experience, but perception
does not.